Have you read the developers FAQ?
http://developers.postgresql.org
---------------------------------------------------------------------------
[EMAIL PROTECTED] wrote:
> Dear Sir:
>
> I am a graduate student of computer science at University of Ottawa.
> Professor Kiringa is my supervisor.
>
> Currently, I am working on a group project. As part of the project, I
> would like to implement a new feature for the trigger creation in
> PostgreSQL, which defines aliases for the "old" and "new" data by adding
> the REFERENCING clause to the CREATE TRIGGER statement. This new feature
> will provide access to the OLD data in the database before modification
> and to the NEW data after modification.
>
> Would you please give me your advice on the implementation?
>
> Look forward to your reply. Please also CC your reply to Professor
> Kiringa. ([EMAIL PROTECTED])
>
> Thanks and Best Regards,
>
>
> Hung Yip
> Computer Science
> University of Ottawa
>
> ---------------------------(end of broadcast)---------------------------
> TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
>
--
Bruce Momjian | http://candle.pha.pa.us
[EMAIL PROTECTED] | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
---------------------------(end of broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
